Improvement in self-extinguishing stoves



WJ?. GONDON. Self-Extinguishing Stove.

No. 210,918'. Patented Dec. 17,1878.

UNrrnD Sri-iras Pn'rnr @raton 1ilVILLLAllI F. CONDON, OF ZILVAUKEE,MICHIGAN.

'IMPROVEMENT IN SELF-EXTINGUISHING STOVES.

Specification forming part of Letters Patent No. 210,918, dated December17', 1878; application tiled December 9, 1878. Y

'To all whom it may concern:

panying drawings, and to the letters of reference marked thereon, whichform apart ot e this specification.

Figure l is a vertical view, with section ot jacket broken away. Fig. 2,a vertical section through y y of Fig. 3; Fig. 3, a cross-sectionthrough Fig. l; Fig. 4, a section of lower part ot' stove, with jacketand cylinder broken away to show the firepot; Fig. 5, a detached view ofsmoke-Hue, with valvecasing; Fig. 6, a detached view or' a door, withcut-oft valve; and Fig. 7, a perspective of sectional cover tosalt-chamber.

My invention relates to self-extin guishin g tire-stoves 5 and consists,first, in making the stove-cylinder in one piece, with iirepot, airlchamber, and water-chamber within it; secondly, 1n the combination ofthe stove-cylinder andjacket, having doors provided with slidingshut-Otis; thirdly, in providing within the interior of thest0ve-cylinder a water-tank, with an air-chamber above the same gfourthly, in connecting the fire-pot and water-tank by means of pipes;fifthly, in the construction of the tire-pot; and, sixthly, in providinga saltchamber within the interior of the stove-cylinder, over theair-chamber and beneath the firepot, all of which will be hereinaftermore particularly set out. v

In the accompanying drawing, the letter A indicates the jacket to thestove, which jacket rests on the base y. This jacket has two swingingdoors, fj', one above the tire-pot and the other below, and bothprovided with selfacting shut-offs d, admitting of a vertical and sideadjustment. These shut-Otis are held in posit-ion by means of guards K,and their function is to close the openings in the doors it the stoveshould be overturned, so as to out on' all draft, and thus assist inextinguishing the re and preventing all particles of the burningmaterial from falling out. This jacket has also a perforated top, 0, tolet ott' hot air, and also has perforations S, near its bottom, to letin cool air. The base on which this jacket rests may be bolted direct tothe iioor, or it may be supported on legs resting on the floor. Vithinthis jacket and resting on the samebase is the stove-cylinder B, whichis provided with sliding doors H, opposite to the doors of the jacket,and provided with selfacting shut-(offs d, constructed and operating thesame as the shut-offs to the jacket-doors. Within this cylinder, at itsbottom, is formed awatcr-tank, G,which communicates by means ofelbow-pipes G, passing through the airchamber D, with the tire-pot F.These pipes are elbowed, so as to prevent the water splashing intoire-pot by the jolting of the stove.

The tirepot F is set within the cylinder B, and has a flaring upperedge, which edge is perforated, and has on its under side sockets c,which t over the pipes G. The pot may rest on these pipes, or it may besupported by the sides of the cylinder B, or by projections on theinside thereof. The nre-pot is provided with the usual grate g, which inthis instance has a stud, t, on the lower part thereof.

Beneath the ire-pot and above the watertank there is formed an airchamber, D, to which air is admitted through openings c. Thisair-chamber is intended to keep the water in the tank cool.

On the top Uot the air-chamber, and beneath the rire-pot, is formed achamber, E, within which are placed pans a, containing salt, and thewhole covered by a sectional cap, M, which is held in place by the studt on the bottom of the grate. This salt-chamber has perforaticns i inits bottom, which opens into the air-chamber; and apipe, J, leads fromthe water-tank to the chamber. Q, indicates the smoke-line, whichcommunicates with exit-pipe I, and which has formed on its side neXt tothe interior ofthe stove a Casin g, Z', the casing being a plate orsheet of metal constructed with a tapering bottoni, and within which isa valve, L.

This valve has an opening, which corresponds with the openings in thecasing and flue, and which is held in position by means of the taperingbottom.

' If the stove should be overturned from any canse the valve falls toone side and closes the openings in the casing and ilue, and cuts offany communication between the two.

The cylinder D has a top, M', across which is passed a bar, WV, andlthrough the ends of which are passed rods Z, which extend down throughthe base of the stove, and are held firmly by lnuts on both ends. Inthis way the top is held securely to the stove-cylinder and Y all theparts rmly braced.

The pipe 7' is for admitting water to the water-tank, and faucet j is todraw water therefrom in cold weather.

The tank may be provided with glass index, to indicate the quantity ofwater in tank.

The jacket usually has swinging doors, while the stove-cylinder hassliding doors, but it is obvious that all the doors may be slidingdoors.

The shut-offs or valves d, instead of being on the doors, may be affixedto the drafts on any other part of the stove.

The pipes G, instead of being elbowed, may have a grating within thesame, oraball resting on a seat therein, or any other device that willprevent the water from splashing.

Operation: If `the stove from any accident should `be overturned theseveral shut-offs in the doors andthe flues close, cutting offcommunication With the'inside. rllhe cover is thrown from thesalt-chamber, the salt overturned, mixing with the burning material.Water Hows through pipes G into lire-pot and onto the fire,extinguishing the same. The steam generated passes through openings inthe bottom of salt chamber into the air chamber below, thence throughits openings into the space between the stove-cylinder and outer jacket,and passes out through openings .near bottom of jacket, and also up tothe top of the jacket, and through the openings vin the top thereof,thereby cooling the stove. The fire is thus soon extinguished, and anyof the burning particles effectually prevented from falling out of thestove onto the floor of the car. The outer jacket protects the cylinderof the stove and makes .the whole doubly secure; for if the outer casingshould be injured in any way the stove-cylinder is protected.

I do not limit myself to any particular form of stove, nor to anyparticular material, for it may be made of either boiler or cast iron orother suitable material.

l. The cylinder B, made in one piece, and provided within its interiorwith Jnre-pot F and water-tank C, connected by pipes G, and havingair-chamber D between the two, substantially as set forth.

2. The combination of the cylinder B with jacket A, provided Withsliding door Hand door f, each having a shut-off, d, admitting ofvertical and side adjustment, substantially as set forth.

3. AThe combination of the watertank C and air-chamber D, theair-chamber having perforations in its sides and top, substantiallyasset forth.

4. The combination of water-tank C, tirepot F, and connecting-pipes G,substantially as set forth.

5. The chamber E, interposed between the fire-pot F and air-chamber D,and communicating with latter through openings in its top, substantiallyas set forth.

6. The combination of water-tank C, firepot F, pipes G, and air-chamberD, substantially as set forth.

I 7. The combination of Water-tank C, iirepot F, pipes G, chamber E, andair-chamber D, substantially as set fort-h.

8. The combination of outer jacket, A, and cylinder B, both providedwith doors having self-closing shut-offs, watentank G, lire-pot F, pipesG, and chambers l) and E, substantially as set forth.

9. The combination of jacket A and cylinder B with air-chamber D, havingperforations in its sides and top, substantially as set forth.

l0. The {ire-pot F, provided with ysockets 11 c, having perforationsabove, substantially as set forth.

l1. The fire-pot F, in combination with water-tank O, the two connectedby pipe G, constructed to prevent water splashing into tirepot,substantially as set forth.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

WILLIAM F. GONDON.

Witnesses WM. G. HENDERSON, A. M. LONG.

